Fps count to cheery?

A Forum Thread for Counter-Strike: Source

Yesterday my pc came from being uograded and i was astonished at the fps count.
but The sudden drop & raise of fps really bothers me.
In custom maps i cant get more than 80-60 wille in dust 2 with full HDR i get 100-120.
And when playing Hns in cs_office every time my camera was inside a wall the fps count would go to 50, and when the camera was off the wall and normal on the map it was at 200-150 fps WTF?
since my dad upgraded the pc i dont know the specs but system requierments labs tell me that my specs are these.
Processor:
AMD Athlon(tm) II X2 250 Processor
Cpu:
3.00 GHz Performance Rated at: 5.85 GHz
Ram:
2gb
operative system:
Microsoft Windows 7 (Build 7600)
Video card:
ATI display adapter (0x9498)
Sound card:
High Definition Audio Device
Hard drive:
500gb
If anyone could fix these fps leaps i would be thankfull

Sigh, ignore the trolls
your FPS is not a static setting (if you dont have v-sync enabled). that means in places where theres a lot of detail and your machine has to work harder your FPS will be lower. on the flip side, in relatively clean easy-to-render areas your machine will have less of a load on it and be able to put more into the rendering process, thus upping your FPS.
i mentioned v-sync, so i guess i should explain it. basically, v-sync tried to match your fps with your monitors refresh rate. this will effectively limit your FPS at a setting, so it will not very from place to place. the up side is your computer can use more resources to keep the FPS constant instead of reaching for the highest possible fps, and it can prevent tearing of imaged on your screen. the down side is, well, your limited to your screens refresh rate and cant brag about high fps lol